feat: introduce personal realms, add `r/manfred/home` #1632

Job	Run time
build (1.20.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	6s
test (1.20.x, _test.flappy)	16s
test (1.20.x, _test.pkg.amino)	1m 21s
test (1.20.x, _test.pkg.bft)	2m 17s
build (1.20.x, amd64, linux, ./pkg/amino/cmd/goscan)	7s
test (1.20.x, _test.pkg.others)	2m 20s
build (1.20.x, amd64, linux, ./pkg/autofile/cmd)	11s
build (1.20.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	11s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/aminoscan)	6s
test (1.21.x, _test.flappy)	23s
build (1.21.x, amd64, linux, ./pkg/amino/cmd/goscan)	6s
test (1.21.x, _test.pkg.amino)	1m 24s
build (1.21.x, amd64, linux, ./pkg/autofile/cmd)	11s
test (1.21.x, _test.pkg.bft)	2m 24s
build (1.21.x, amd64, linux, ./pkg/iavl/cmd/iaviewer)	10s
test (1.21.x, _test.pkg.others)	2m 29s
upload-coverage	0s
	14m 2s

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